Economical, ≈59 HRC through-hardness, good toughness, excellent workshop properties
Tillage implements such as moldboards operate in high-wear environments, especially after the harvest. The wearing becomes even more aggressive if there is frost and crop residue. Moldboard plow manufacturers, therefore, search for high hardness steels to reduce wear, plus good toughness to resistant impacts against stones and small rocks.
SSAB M53 addresses the limitations of traditional hardened steels for moldboard plows. With SSAB M53, you can:
- Reduce production costs by using common, economical heat treatments (press, hot forming, etc.) and workshop processes
- Achieve typical hardness of ≈59 HRC that is throughout the entire thickness of the plow with typical impact toughness of ≈18 Joules
- Improved workshop properties compared to carburized, triple-clad, and high-alloy tool steel
SSAB M53’s through-thickness hardness profile
SSAB M53 Charpy impact test @23°C
Make moldboard plows with high toughness, easier processing, and no quench cracks
When following our recommendations for heat treatment and quenching media, SSAB M53 virtually eliminates quench cracks. We recommend water polymer for normal quenching, in the case of press hardening, please contact your local SSAB technical development team for specific recommendations. When water polymer quenched and low-temperature-tempered, SSAB M53 typically delivers 18 Joules impact energy resistance, along with its ≈59 HRC through-thickness hardness.
SSAB M53 can be cut mechanically or by using lasers or plasma cutters when following our recommendations. Flame cutting is not advised. If you need to punch or counterbore SSAB M53, please contact your local SSAB technical development team for specific recommendations. We recommend not punching or cold forming SSAB M53 in the hot-rolled delivered condition.
SSAB M53 is available as hot-rolled sheets, from 4.0 to 8.0 mm thickness, 1000 to 1800 mm widths and a maximum length of 13 meters.
General Product Description
Dimension Range
(mmin)
(mmin)
1) Please check thickness/width combinations available.
Mechanical Properties
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
(MPa), not guaranteed
(HRC), not guaranteed
(HBW), not guaranteed
Examples of cooling media used for evaluating typical mechanical properties:
PAG polymer 10%, no agitation, T ≤ 30 °C.
Fast cooling rate quenching oil, T ≤ 35 °C.
Bending radius
For further information, please consult your local SSAB contact person or contact SSAB´s Technical Customer Service.
Material Testing
A material test certificate Type 2.2 according to EN 10204 (chemical composition) is part of the delivery.
A material test certificate according Type 3.1 according to EN 10204 (mechanical properties) can be provided by special agreement.
Impact Properties (typical values)
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
1) For thicknesses between 6 - 11.9 mm, sub-size Charpy V-specimens are used. The specified typical value is then proportrional to the cross-sectional area of the specimen compared to a full-size specimen (10 x 10 mm).
Chemical Composition (ladle analysis)
(%)
(%)
(%)
(max %)
(max %)
(max %)
SSAB M53 is micro-alloyed with Nb, Ti and V.
Carbon Equivalent CET(CEV)
Tolerances
SSAB M53 is delivered with SSAB tolerances, which meet and exceed the requirements in EN 10051. Tighter tolerances are available upon request
Thickness
2/3 of EN 10051.
Width
Hot rolled sheet: -0/+20mm.
Length
Shape
Tolerances according to EN 10051.
Flatness
≤ 6 mm/1 m ruler deviation (only valid for cut to length sheets).
Surface Properties
According to EN 10163-2 Class A, Subclass 3.
Delivery Conditions
Hot rolled sheet are delivered in as rolled (+AR) condition.
Surface Condition
Hot rolled strip products are available in non-pickled.
Pickled dry or pickled & oiled condition available upon request.
Fabrication and Other Recommendations
Cutting is recommended by laser or plasma, flame cutting is not advised.
For information concerning fabrication, see SSAB´s brochures on www.ssab.com or consult Tech Support.
Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the products.